diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 43e2e89886c..d6dbb142820 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -173,7 +173,7 @@ static void dwc_initialize(struct dw_dma_chan *dwc) return; if (dws && dws->cfg_hi == ~0 && dws->cfg_lo == ~0) { - /* autoconfigure based on request line from DT */ + /* Autoconfigure based on request line from DT */ if (dwc->direction == DMA_MEM_TO_DEV) cfghi = DWC_CFGH_DST_PER(dwc->request_line); else if (dwc->direction == DMA_DEV_TO_MEM) @@ -473,16 +473,16 @@ static void dwc_scan_descriptors(struct dw_dma *dw, struct dw_dma_chan *dwc) (unsigned long long)llp); list_for_each_entry_safe(desc, _desc, &dwc->active_list, desc_node) { - /* initial residue value */ + /* Initial residue value */ dwc->residue = desc->total_len; - /* check first descriptors addr */ + /* Check first descriptors addr */ if (desc->txd.phys == llp) { spin_unlock_irqrestore(&dwc->lock, flags); return; } - /* check first descriptors llp */ + /* Check first descriptors llp */ if (desc->lli.llp == llp) { /* This one is currently in progress */ dwc->residue -= dwc_get_sent(dwc); @@ -588,7 +588,7 @@ inline dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan) } EXPORT_SYMBOL(dw_dma_get_dst_addr); -/* called with dwc->lock held and all DMAC interrupts disabled */ +/* Called with dwc->lock held and all DMAC interrupts disabled */ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc, u32 status_err, u32 status_xfer) { @@ -626,7 +626,7 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc, dwc_chan_disable(dw, dwc); - /* make sure DMA does not restart by loading a new list */ + /* Make sure DMA does not restart by loading a new list */ channel_writel(dwc, LLP, 0); channel_writel(dwc, CTL_LO, 0); channel_writel(dwc, CTL_HI, 0); @@ -1256,7 +1256,7 @@ static bool dw_dma_generic_filter(struct dma_chan *chan, void *param) struct dw_dma_filter_args *fargs = param; struct dw_dma_slave *dws = &dwc->slave; - /* ensure the device matches our channel */ + /* Ensure the device matches our channel */ if (chan->device != &fargs->dw->dma) return false; @@ -1323,7 +1323,7 @@ int dw_dma_cyclic_start(struct dma_chan *chan) spin_lock_irqsave(&dwc->lock, flags); - /* assert channel is idle */ + /* Assert channel is idle */ if (dma_readl(dw, CH_EN) & dwc->mask) { dev_err(chan2dev(&dwc->chan), "BUG: Attempted to start non-idle channel\n"); @@ -1335,7 +1335,7 @@ int dw_dma_cyclic_start(struct dma_chan *chan) dma_writel(dw, CLEAR.ERROR, dwc->mask); dma_writel(dw, CLEAR.XFER, dwc->mask); - /* setup DMAC channel registers */ + /* Setup DMAC channel registers */ channel_writel(dwc, LLP, dwc->cdesc->desc[0]->txd.phys); channel_writel(dwc, CTL_LO, DWC_CTLL_LLP_D_EN | DWC_CTLL_LLP_S_EN); channel_writel(dwc, CTL_HI, 0); @@ -1502,7 +1502,7 @@ struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan, last = desc; } - /* lets make a cyclic list */ + /* Let's make a cyclic list */ last->lli.llp = cdesc->desc[0]->txd.phys; dev_dbg(chan2dev(&dwc->chan), "cyclic prepared buf 0x%llx len %zu " @@ -1707,7 +1707,7 @@ static int dw_probe(struct platform_device *pdev) dw->regs = regs; - /* get hardware configuration parameters */ + /* Get hardware configuration parameters */ if (autocfg) { max_blk_size = dma_readl(dw, MAX_BLK_SIZE); @@ -1729,10 +1729,10 @@ static int dw_probe(struct platform_device *pdev) /* Calculate all channel mask before DMA setup */ dw->all_chan_mask = (1 << nr_channels) - 1; - /* force dma off, just in case */ + /* Force dma off, just in case */ dw_dma_off(dw); - /* disable BLOCK interrupts as well */ + /* Disable BLOCK interrupts as well */ channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); err = devm_request_irq(&pdev->dev, irq, dw_dma_interrupt, 0, @@ -1742,7 +1742,7 @@ static int dw_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dw); - /* create a pool of consistent memory blocks for hardware descriptors */ + /* Create a pool of consistent memory blocks for hardware descriptors */ dw->desc_pool = dmam_pool_create("dw_dmac_desc_pool", &pdev->dev, sizeof(struct dw_desc), 4, 0); if (!dw->desc_pool) { @@ -1783,7 +1783,7 @@ static int dw_probe(struct platform_device *pdev) dwc->direction = DMA_TRANS_NONE; - /* hardware configuration */ + /* Hardware configuration */ if (autocfg) { unsigned int dwc_params; |